You 'nutted' me when you said...no solar powered fans...the hi low location of the vents should provide enough draw...will they be waterproof in heavy rain whilst driving or 'puddle/river crossing' ????....you have given yourself the answers...I'd go two located on the bottom of the front board directly behind the cabin and two up high at the rear in the location you spoke of....it 'should' vent out the stakes from the bottom....the 'hot air' should provide enough pressure to push itself out and the 'draft' created at the bottom of the stake 'should' provide draw whilst driving....if the space is vacuum sealed....real red neck method...small intake scoops over cab to push air in whilst mobile...but...that would look ridiculous...on the other hand...the top of the scoop would be a good place to 'hide' the solar panels then run the wiring internal of the scoop and plumbing...stainless square tube ????

ps: I hope you get lots of replies and can put together something that incorporates a bit of each idea...works for me !

Cool, thank for your input. Be great if I didn't have to have the top mounted vent in the rear stake pocket, as more likely to suck dust from there too.

Something as simple as slotted vents in the side of the tray above a fixed position for the fridge...preferably at the front to reduce any induction of 'unwanteds'

http://willyshotrod.com/Willys2909.jpg
Something that came to light, that was not unexpected as happens to these stock as well, is bonnet flutter. Starts to appear at around 100kph/60mph and worse when hitting a headwind or a passing truck. So fitted some external bonnet latches.

http://willyshotrod.com/Willys2910.jpg
I like them where they where they were installed in the factory position on CJ's from 1955 on and punched a dimple die access hole where I needed to get to one of the retaining nuts when I made the bonnet support.

http://willyshotrod.com/Willys2911.jpg
I used polished stainless steel ones, RT-Offroad #RT34011, rather than factory chrome so don't have to worry about rust. I bought them from this seller. https://www.ebay.com.au/itm/291388365480

http://willyshotrod.com/Willys2915.jpg
Looking to make a storage chest to go against the head board of the truck bed. What to dress it up a bit embossing Willys into it in the scale of the Willys Knight sign I have.

http://willyshotrod.com/Willys2916.jpg
I taped some clear plastic over the sign and then freehanded it to be more like the small Willys logo.

http://willyshotrod.com/Willys2917.jpg
I took elements from both logos to get what I liked the look of. I prefer the flowing script of the Knight sign for instance over the other one.

http://willyshotrod.com/Willys2918.jpg
Transferred from the plastic to the card underneath by just running over the script hard with a ball point pen and then going over the impression left in the card afterwards.

http://willyshotrod.com/Willys2919.jpg
Cut the script out and drew around it to get my embossing pattern.

http://willyshotrod.com/Willys2920.jpg
This is 304 stainless steel 0.7mm thick and still does not stretch well at all. I have done all I can reach with my bead roller and will turn the dies around to complete it.

http://willyshotrod.com/Willys2921.jpg
Finished going around using the art dies in my bead roller.

http://willyshotrod.com/Willys2922.jpg
I decided to stretch the embossing by hammering the letter face to get it to sit flat and correct the distortion.

http://willyshotrod.com/Willys2923.jpg
My steel table is made from two old rusted barbeque plates and the surface imperfections transferred into the hammered area as expected. One day I will have to get a new top for the table.

http://willyshotrod.com/Willys2924.jpg
Used a DA sander and a strip disc to help get rid of the tooling marks etc. Have to be really careful as is only 23 gauge so could easily make it too thin.

http://willyshotrod.com/Willys2925.jpg
A bit of finer sanding on the embossing to bring it out.

Mad skills.

Thank you!